You believe your fitness tracker's data when it says you walked 10,000-plus steps and burned more than 500 calories today. But how accurate are those results? Could your FitBit be underestimating — or (gasp!) inflating — your daily energy output?

"Gadget" is a catch-all word these days for nifty devices. We've covered the basics, such as clocks & watches, plus delved into the world of present-day and future high-tech gadgets, such as digital jewelry and restaurant pagers.

Home audio and video setups are as individual as the people who own them. At its most basic, a home theater includes a TV, some speakers and an audio/video source. Find out about the newest home theater components, and how they work together to give you a superior entertainment experience.

This How-to Tech section is full of great articles explaining how to handle the increasing amount of technological objects in your life. Visit the How-to Tech guide and learn how to become the tech expert in your household.

For many, personal audio electronic devices such as iPods and other MP3 Players play a pivotal role in our individual entertainment lives. Many of us couldn’t imagine a walk to work or treadmill jog without one.

Telecommunications devices, including cell phones, satellite radio or Voice over IP, connect us to one another and to the world of information at our fingertips. Learn all about the technologies we depend upon for efficient communication.

Tech myths can be difficult to spot because we can never really know the limits of such ever-changing technology. Are there limits to the powers of the internet, Facebook and video games? To learn more about such topics, check out these articles.

As far as gadgets go, the world completely changed during the 1980s and '90s. Think about it -- we started the '80s without VCRs, and by the end of the '90s, we had tiny cell phones in our pockets. Can you guess which of these iconic gadgets was introduced in which decade?

People often think of virtual reality as a solely recreational pursuit, but doctors and scientists are using the technology in a variety of therapeutic ways, helping people recover from psychological and physical ailments.